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ASTM-E721:2011 Edition

ASTM-E721:2011 Edition

$44.96

E721-11 Standard Guide for Determining Neutron Energy Spectra from Neutron Sensors for Radiation-Hardness Testing of Electronics

Published By Publication Date Number of Pages
ASTM 2011 11
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1.1 This guide covers procedures for determining the energy-differential fluence spectra of neutrons used in radiation-hardness testing of electronic semiconductor devices. The types of neutron sources specifically covered by this guide are fission or degraded energy fission sources used in either a steady-state or pulse mode.

1.2 This guide provides guidance and criteria that can be applied during the process of choosing the spectrum adjustment methodology that is best suited to the available data and relevant for the environment being investigated.

1.3 This guide is to be used in conjunction with Guide E720 to characterize neutron spectra and is used in conjunction with Practice E722 to characterize damage-related parameters normally associated with radiation-hardness testing of electronic-semiconductor devices.

Note 1Although Guide E720 only discusses activation foil sensors, any energy-dependent neutron-responding sensor for which a response function is known may be used (1) .

Note 2For terminology used in this guide, see Terminology E170 .

1.4 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.

1.5 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

PDF Catalog

PDF Pages PDF Title
1 Scope
Referenced Documents
2 Terminology
Significance and Use
Spectrum Determination With Neutron Sensors
5 Discussion and Comparison of Methodology Characteristics
Precision and Bias
Keywords
X1. APPLICATION OF THE SAND II CODE
X1.1 Summary of the Iterative Method, SAND II
6 X1.2 Operational Characteristics of the Code
X1.3 Constraints on Use of the Code
7 X1.4 Operating Procedures for the Code
X1.5 Limitations of the Code
8 X1.6 Precision and Bias
X2. APPLICATION OF THE LSL-M2 CODE
X2.1 The Least-Squares Method, LSL-M2
X2.2 Introduction
X2.3 Constraints on the Use of the Code
9 X2.4 Operation of the Code
10 X2.5 Deficiencies of the Code
X2.6 Precision and Bias
REFERENCES

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